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You measure the electric field between the plates of a 5 nF capacitor to be 2000 N/C. If the charge on this capacitor is 2 μC, determine how far apart are the plates?
Coherent light with wavelength 601nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3.00 m from the slits, For what wavelength of light will the first-order dark fringe
a pump in a boat pumps 6 ft3s of water through a submerged water passage which has an area of 0.25 ft2 at the bow of
A rope is wrapped around a wheel of radius R = 2.0 meters. The wheel is mounted with frictionless bearings on an axle during its center. A block of mass 14 kg is suspended from the end of the rope. When the system is released from rest it is observed..
An engine running at 62.5% efficiency transfers 154 J of heat to the cold reservoir through each cycle. How much heat does the engine receive from the hot reservoir each cycle?
A vehicle is negotiating a flat circular curve of radius 50 meter with a speed of 20 m/s. The maximum centripetal force (provided by static friction) is 1.2 x 10^4 N. Determine what is the mass of the car
A 1000 kg roller coaster car starts from rest from a hilltop 60.0 m above the ground and moves (without power) down, what is the average frictional force between the car's wheels and the track
In an experiment designed to measure the strength of a uniform magnetic field produced by a set coils, the electron are accelerated from rest through a potential difference of 350V, and the beam associated with the electrons is measured to have a ..
A 20. -kg lead sphere is hanging from a hook by a thin wire3.5m long, and is free to swing in a complete cirle. What must be the minimum intial speed of the dart
A charge of 4.55 mC is placed at each corner of a square 0.100 m on a side. Determine the direction of the force on each charge
At the surface, atmospheric pressure is 1.013 X 10^5 Pa. What is the additional pressure on the air in their lungs
in any triangle the sum of the measures of the angles is 180deg. in a triangle abc angle a is four times as large as
A 25.0g sample of copper at 363 K is placed in 100g of water at 293 K. Calculate final temperature of the water
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